Why this weird weather? Why have western disturbances—the extra-tropical storms that originate in the Mediterranean and Atlantic seas—been lashing us again and again, with devastating impacts on agriculture? Is this normal? Or has weird weather become the new definition of normal?

One item on the agenda of the much-discussed Narendra Modi-Barack Obama meeting that has Indian commentators flummoxed is hydrofluorocarbons (HFCs). The joint statement issued after the meeting of the two heads of states says rather ambiguously that the two sides agreed to cooperate on “next steps to tackle the challenge posed by HFCs to global warming.”

Climate change has a surprising new follower: the US president. The US government has been the biggest bugbear in climate change negotiations. Since discussions began on this issue in the early 1990s, the US has stymied all efforts for an effective and fair deal. It has blocked action by arguing that countries like China and India must first do more. Worse, successive governments have even denied that the threat from a changing climate is real, let alone urgent.

During my weekly conversation with my sister I told her about the unusual searing heat this June, the problems of power cuts and how we are coping in India. She, in turn, told me that in Washington DC, where she lives, there was a terrible storm that damaged her roof and uprooted trees in her garden. They were fortunate that they still had electricity, because most houses in the city were in the dark. She also said it was unbearably hot because the region was in the grip of an unprecedented heat wave.

In 1992, when the world met to discuss an agreement on climate change, equity was a simple concept: sharing the global commons—the atmosphere in this case—equally among all. It did not provoke much anxiety, for there were no real claimants. However, this does not mean the concept was readily accepted. A small group of industrialised countries had burnt fossil fuels for 100 years and built up enormous wealth. This club had to decide what to do to cut emissions, and it claimed all countries were equally responsible for the problem. In 1991, just as the climate convention was being finalised, a report, released by an influential Washington think tank, broke the news that its analysis showed India, China and other developing countries were equally responsible for greenhouse gases. Anil Agarwal and I rebutted this and brought in the issue of equitable access to the global commons. We also showed, beyond doubt, that the industrialised countries were singularly responsible for the increased greenhouse gases.

Top News is a compilation of important environmental news topics selected by environmental experts from the Asia-Pacific region as well as by international organisations and research institutes from twenty-one countries in the region.